nigricinctus, Hyphessobrycon Zarske [A.] & Géry [J.] 2004:33, Figs. 1-3 [Zoologische Abhandlungen; Staatliches Museum für Tierkunde in Dresden v. 54; ref. 28039] Río Madre de Dios, Peru. Holotype: MTD F 28465. Paratypes: Géry coll. 1065.1.2004 (1), 1065.2.2004 (1); MTD F 28457-59 (3), 28460-61 (2); ZFMK 39847 (1). Type catalog: Herder et al. 2010:116 [ref. 31087]. •Valid as Hyphessobrycon nigricinctus Zarske & Géry 2004 -- (Zarske & Géry 2006:48 [ref. 28750], García-Alzate et al. 2013:861 [ref. 32692], García-Alzate et al. 2017:127 [ref. 35253], Ohara et al. 2017:10 [ref. 35494], Dagosta et al. 2022:11 [ref. 39143], Marinho & Dagosta 2024:16 [ref. 41147]). Current status: Valid as Hyphessobrycon nigricinctus Zarske & Géry 2004. Acestrorhamphidae: Hyphessobryconinae. Distribution: South America: Madre de Dios River drainage, Madeira River basin, Peru. Habitat: freshwater.